Change

• Added a process to acquire achievements if a stage has already been completed.
  
• Added a process to acquire achievements only for the " Start" stage if the stage has been completed.
  
• Improved loading screen
  

Optimization

• Improved startup process
  

Fixes

• The first boss is walking on four legs for a moment just after the countdown scene ends
  
• Camera is too far away when advancing ahead of laser enemies